{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10431",
    "entityType": "User",
    "nonce": "0x9d0d31ec7bc38192aaf35929dcd85c09430d0742f2c04a3e91d56e7bf878baff",
    "signature": "0x6e680509da7779c811e8c41db6882e8841d36626799a8984fe1c48a0b3ce218818ab808d2a1f5aa3e69cbbebd9f12c9241bcaf00a79679c337a3d7ce4acd3c5b1b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}