{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9c19f209edf2885694d27e9cfb6364c82f68e79059620ed7c2ce374ddf4dba9e",
    "signature": "0xba19388944400b9c59010c5f8979727201c2b58cc7f4111900384aaf86c6a482712dda51ed6d6f0dce0d60115360610008c203f661c17a3c60c73f2ab48766ee1b",
    "signer": "0xe6a53Ca37D739E3ba1b0794353D018D0FDe60BA1",
    "userId": "941395258"
  }
}