{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x74f911f39842faf427b1bde0f4952a6572ebb8311d0dafb0c3a65e82f889a18a",
    "signature": "0x7c082676e6335721473a4141c65994ba58cdcb9da3018aed01b9611fb152d0a90180ff61bf10bb0690a3b3fc6e46e8395a9fbfbe7c5f85c25dfa9ac7c7f642511c",
    "signer": "0xbdD8a71b223A334Ba407862ccb5a50716e8C658B",
    "userId": "935070044"
  }
}