{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0xdc157ce5b9e38e2c0ce60ff7044c732d30a03075788b212e5cba9d0579b52bde",
    "signature": "0x6998ce92728d1a919b35bef268d618c542bad26488ac46b2f4ab0e75053e239f08ac47be72aaebadca0e1352461a0f99d4fae201247a6bdbeb8872c248295fa41b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}