{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73420",
    "entityType": "User",
    "nonce": "0x9b0c7c3f8e0d46e9977498e71cda9fd7c235ae3154809039b80dcacf7259e038",
    "signature": "0x8ef0d217aa5a602e57a762eaa62675911b37a8756ed9660ced10f5861086e5fa3b8ef2020746ebe683b5930db387e26b11053dfdee192d8058796c1f7df831a01b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}