{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1922db8a77f81e6d29c3ea6b1fa1c7dca3c397a74828719f5abb8fb1932b5b05",
    "signature": "0x80c0fd9998c0af1b3cc65a9b9de1c2069185794bc3f98e43c11c7d635e5afce049254b8dfa46c51019a0031fa3c97f5504cf1c9268050bf90f7512ac8a9046931b",
    "signer": "0x69390eE85A40368f1dB502Dde4b1fc36a1850A33",
    "userId": "27130590"
  }
}