{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "545584",
    "entityType": "User",
    "nonce": "0xadbc16eb3b01cf176572d1b338db821fcad0f0ad7a074744647b39c5cfea70a5",
    "signature": "0x7ee3bb0f54ef7c987d5e758f088359a701d27d42bab2d739a83221fa0d447780676d0e77b95d20704d8489506f927f32058f3b3f965100425ac0e0fec4c57ff01c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}