{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9307f96f0806d62c02776bd391213243215a98b8dbea3651efe3e8a52af379e8",
    "signature": "0x129fda2a81d4985c6d2e44f4339f06ce9e6895c6449732df98f5ae61259f91c177dfaec0b07ae71ba970fc40d1e21608c2b48fc18f24bd3ec87eef7d7b4032331c",
    "signer": "0xe7f52663dc194D9CB8506C8aF8b5b93aB4EC9807",
    "userId": "588389626"
  }
}