{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x9f5e52984006dad1df7b488b0fba0efe114ec2aad7183fd59682f57119eae72e",
    "signature": "0x96b045b7f9db751387c7925364ce0f6fca858ef4111dbdfccf1ac37f526744364b6529e1401ad9abca57b0fb9400e9fcb8a16dd7c35182730773050851076da61b",
    "signer": "0x28E33991512111134d5d0a41560151532083B312",
    "userId": "9962"
  }
}