{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xf1e69a0ec5f57622a9645c6a54f89c248cc9111e9c398f9269f6c155947d370e",
    "signature": "0xe9202901939cee2879e601fc23a5fdb7c268252f68101a70d1f0963eeefcbbc66fcaa8b1e2fe28ad2c96ede24ca688261c90b41bd44249fc2dbf934c4ad6fceb1b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}