{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7815",
    "entityType": "User",
    "nonce": "0x5c834a1fee301ad142027a1e2132e8c0b350e12922aa6b60572a9ce5f2714324",
    "signature": "0x9dc54acf1815ddec85a88119de30f2aed03ea7b349bf46f5e44b917adf4d7e615e7a17b4336f243043eef201134003dd729bc06bcdcba206aed51d67a358f3511b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}