{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120830",
    "entityType": "User",
    "nonce": "0x185ae31553bae6e5acd82fbdb4407c114825dc269a596a378597eced5baa8ed9",
    "signature": "0x15de4ec2c25b566a89c72e531dbe7119356b4551a9ada868b6d8158406d0ed1215bfcad9948e43f4b44133969a7ca1f815d8dc6c0949e82b3b2b66fb7bcd91891c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}