{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xc9239442b2090e74c9705c6974efa6741b3da89c60e19c37f20fb07cddb73221",
    "signature": "0x19f6efce4842ee70cc3a3395478d4a715194c13a85f1d29d0fe87d96b04667d741118e3bc8375619b8fb30a76492dad54e276783529a108cf8b0219b202717dc1c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}