{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0xb009ef443170b8ec5367da0ab0f38bcb7be8b75b0edb1234c3ceb7e67abc8e94",
    "signature": "0x9bad773ecb320ddfd9e8bcf761f37c9d82e73be58e32bd6e1fb0f2e6da4357a267731be20630cb5b5c903608dbd31bb11652ccd515b3b3052ee844a9b7de4e851b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}