{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345624",
    "entityType": "User",
    "nonce": "0xd647179a700096accead2fd296a179ec3989f7c55bea14b82a93db499888e923",
    "signature": "0xafcdbf56839ea076ea8c785634e8807b1cb6e47bc9207d3f3fc149e28d0dfbd31b4bfbb27c189a8881d7920533c2f3061a82db20e3f1893a5d2db7af6513cd5f1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}