{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9615fadc26f65c2abc1d451fff740046c380d42d1112655ccfd18fce52884500",
    "signature": "0xfda8b77385ce8958ea868341ff8a178d18bb5c3438d5067d9d621a697d159a67403d975fda128f27a2f6ac1131791d69eba51c8e39986d00b916d6f3d4100b0b1b",
    "signer": "0x1D7dd4E8c0E6e89fEf3dAe4C379eA88DdC3a9058",
    "userId": "913381286"
  }
}