{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325380",
    "entityType": "User",
    "nonce": "0x62897bbfa2db6b9fc3c82aa57dc194acd96139e8282aeb323509d9bb5127008b",
    "signature": "0xfc7ae550ebf57d26b8779dfbd642cd5f769225c9b21df44f44faaeaec3d8f19a7b3c6f3b23653c10d2b05e78ea50e7e94d527554b17b826cd970d0f74baa5c9a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}