{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74261",
    "entityType": "User",
    "nonce": "0x4bdace27b433a99d4a3810464f1a4d3ee34e2fd111f6696dc8a0fe44d551081a",
    "signature": "0x326a662eb1eb2d42ed843fa7bd3c796abf2dcb5231edefd80b055da8125e438b3be5fa0431ee0791fd2ce87813bccb5eae5d4d28e05c2fe2686fb8ad6c2c0b341c",
    "signer": "0xecd2908757D29dF088bd436A689baDeb4c915d34",
    "userId": "463878785"
  }
}