{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0x507cf639831bca814276283c0d2066b161f1bda0fc5369047059ab452aa8442a",
    "signature": "0x631ff31b66163a97002dbbd438e6b213b0c968ab28c4cabda7be69a502fc58d42ed495dd7cbf2d918920c83fd465f85c5e00c2ca8bd47b15cec0b7a24f8ca7151b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}