{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "855326662",
    "entityType": "User",
    "nonce": "0x142a6c48f7ae9d97780a953df8b92e6b4b2a631a100dd875e19a21b7bffa1b4f",
    "signature": "0xe953bb5f6a40180a7803b8d2a1b1d0a87ee981b87008da3b175f1f1edd02170d28361ac9f58d1ff5a866aba11589ec66404215fa3fc00ec1947729fb581cb1ca1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}