{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "645526985",
    "entityType": "User",
    "nonce": "0x8ef62826a5e13aa0f7e6f743e5a899d17c1517058034729d48b662890c6d20eb",
    "signature": "0xfecf31afca080949d4879c45471af5187c36aa2e092d704ef22ff2fb7e32570251d25517f16790d8cb3539f3e31ce9810efa425c8d0333b70a4d8c98d47816d71b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}