{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0x98e27a81bba70b2f60f42ba3c86b54074b3601f45611bb613a410375145af4f5",
    "signature": "0x693333dc8a819fc3fe57136cc44cf72ec236b93e4c3131440c8cf3a4a96812553139273c1a545ed6c7ba98ab22fb9bef826833936330a74b7ce68471dfd2dfb81c",
    "signer": "0xca7ED35Ea6226B62ef9998B36bcD0519E7822ab5",
    "userId": "413318698"
  }
}