{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511688",
    "entityType": "User",
    "nonce": "0xcc8b2de297c8019fb37934e0ed6defc38efe5adc08511dcbe3be63dfef86628d",
    "signature": "0x3c94681e2d95d47366ad33bb9a71e12df8fe4a965a491c002d5d93ef778638b04a33b9095955e14986c60f5c5dc701adda70972748da984cee72a878176f340f1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}