{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2052268",
    "entityType": "User",
    "nonce": "0x7f2b51642be0ffc7a5af743f7e9fc02605403eac7090f257e3aae21723c4b05b",
    "signature": "0x81088dee383b13d4ad3c91e83e534a1ad66313227adce79da40892a1fa0ecec5761a678bec14fd35755b08d62fbb1548bdad2bb046c73db928f34728ff8bc0d61c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}