{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed144ba09d868e76ed1a737c25eb907b88d8b83992b1221f8a9b674a21716f71",
    "signature": "0x954d51c002f236f3fce41b121170a71095f4ec682df36caae7e1998ab644d04d45a270461929ff18f2f86cd661e8c323fa6b16563528fc4d26b0059b76dc5ff31c",
    "signer": "0xa5386E1DA6C9B1f6f482C34B8d04A84970da94A1",
    "userId": "635697057"
  }
}