{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42617",
    "entityType": "User",
    "nonce": "0xfa5cbf31944088fabf0112659f5e3b6796e9eb092feee7d6c33677f49ac6b3fa",
    "signature": "0xc746e08f1f42a1a94e14caac261716563d6deb5675531b0a3bbf1b1e930e67ae0c7b36113fddd04e6ed472b1b290913c42572979f62fb5bfaf87af05d547ee941c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}