{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "827420993",
    "entityType": "User",
    "nonce": "0x787ad34ff2293b8a6b71d274969ab7dd2ec38cdba726a397bc48cc311e7703e9",
    "signature": "0x944949fe6a090c58830e0c8cdad8b14f924f97f9856c1980efe171aac48967b51d2dea0cebdb2d681ad157eb45bf4d6c54ac5a05558e5c178f22e5571f70a17c1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}