{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885476",
    "entityType": "User",
    "nonce": "0x143b2a6a1ef903d62ec38db2c5a49af13217c828a553b57fd849bf0996b9fd0a",
    "signature": "0xceaa56585abe387856021979267bfa48a5b429febd151c88ba77f2da5784687e09f658d5cce9cbbbe43615dc7d1b3bcf7b0c093ed2a33406fbf046d5f364e7ea1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}