{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfda514f235a5094f0eb5cd34075154b21948dbb6c34fe13003b858ab337566f6",
    "signature": "0x21fee1e0add0120be3c80e374042ad9e0830ac7b637d2a94b25892f3b486176f3988b2584e8fc2e2c00f83892bf80296f6003da63f2bc7d44d23646a88c184c51b",
    "signer": "0x6Ff2481658CB2cAcd7591ce506C530e610D1220D",
    "userId": "228219761"
  }
}