{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48676664",
    "entityType": "User",
    "nonce": "0x5c5cbc803ed785371d2668ff1b7c88331269f80c7dd2b0fc42c4b3b42609a78a",
    "signature": "0x2f75d0ff6d74107d2221d58297c9dd264a411556617b018203c53c65d7feb7b1479e3a3171409b204acee7b50d89cd4796f860ad23215550be789148f392f7041c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}