{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a00c926a99dee2f46032f162c3f3afda3d583303dfd162254e50f0fa9b32cc8",
    "signature": "0xfef247df024833685ced62f9caa5aab5b68d7ff5def6e38a22f960a617a03c8b639532fa484dc13ca17575fcae0df4917323fa1cf71c83beb52a8dfef14029071c",
    "signer": "0x95916e48E3DC339187EE748a8ef54c4a84287200",
    "userId": "609191588"
  }
}