{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1676752",
    "entityType": "User",
    "nonce": "0xa5e2cbb5d75255e598b91b67c589c8a5cb19c5a40b02cf04ab114950ab65eb74",
    "signature": "0x012efe5406517eeadde273b51e81028ccf4c674c38b6efebed15cd3e74e6a5077bafb45ef9fa6c642d73c7988eec395a6ff046b67072faf383f68766bdfa5e591c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}