{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "351990",
    "entityType": "User",
    "nonce": "0x103312bdb8fa8b2a1697b3059a8225ad6c496723a7ac912840e8de68e2a4f221",
    "signature": "0x93e925664724f1568df870c6beb6e396bcb8b021bfcb5a9cb986b2db759fc7980a8bcab8d42d9104038c4ec039db51f6dd5d208821918cbefc894d58653b15941c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}