{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33d93b76d6ee8c449450874ce1a71553a075a502afa96c1f93d401122a5e830c",
    "signature": "0x97ecacd7a2b03c5fa2e38ec3f88c02d96e42bdf83643d010d65e3af564fe9f14071f45189ab9696e9046f04a5e8a290990140185d0f9d902888272610f6daaeb1c",
    "signer": "0xA42978Aaab9E984aa8B6b2a996d8676E43d48F36",
    "userId": "506877366"
  }
}