{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485177032",
    "entityType": "User",
    "nonce": "0x0ce0438773122db75202e60fbb2f78faff71c269475c8625a37b3a0dad4c7cc0",
    "signature": "0x6a25118c1aec1d4516a8e2add5054c1b21c7cda14d4be67c5f1b82f21c1bba2d0bc14cb31051ee2c316f9acb1d9d593a592545b3ac6c0c468b764d8e43ab78001b",
    "signer": "0x9981707E90f9BCeE948E5eA5409A4D1b982c3AF4",
    "userId": "400587006"
  }
}