{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "904230991",
    "entityType": "User",
    "nonce": "0x4d3bec66b3f8d957ef1c3f62dbe4d5d5b45e111574a6029af6981b1187b93d72",
    "signature": "0xb4076d6b02da4c58b7530eefcac3191fab5b9002646a69bfc405d8030ab62d61679d9cd6c64e83f7181fa82f8129c01f492cc6f2b04200cac0ada5d7d9c02d6c1b",
    "signer": "0x2FfaaA49b2A0FDc7cF252bfBd484C3689098703e",
    "userId": "355980449"
  }
}