{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "635405835",
    "entityType": "User",
    "nonce": "0xb9d20880628be732bf6bb45bd3fc5be5e3f4addeacc7cc99db759cc11edf0efd",
    "signature": "0x494dba4918b2caef3bde4247cf0ba1e876e4f39f1e9d59bbc1be8346504399ac75d87d7be6b99f8663aef1b647bebcc8634c882a1c07b4bdce8f4829225d78e81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}