{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894188626",
    "entityType": "User",
    "nonce": "0x76701d0a7efcbaf385c4725161e84cd33d63f6bd8ed32c5def9a281d990be403",
    "signature": "0xd2c4e6a88ec099a7fe73401795f8e61684f079f53e1aed3aad7e30785419aabd29831f47eba6bf0fe25ae9ad8f6c8a8fcd431307b4535344dcf90cbefe11e8cf1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}