{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146791",
    "entityType": "User",
    "nonce": "0x17e4235ae26dc55a9a1f73f632f265bcc83ba202f5aed6945b3483967458709e",
    "signature": "0x365a4612d65836b862dc806f7b1ed9f7f0dd30b0cf35caa652a55120737ebacc01a0386818bff05326f29e7932d2116e03f0d9e90b4dac62e48cae2fd928ae511c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}