{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75085",
    "entityType": "User",
    "nonce": "0xcf942d8571c593fa649a0fa8a05828608340884c45018303c2fac019ca0e2719",
    "signature": "0x353adeea1dddc01cd26107cad7eab3e697142f1de601646d4a02268e140b4033726abb7b62515a6069313305890b08c58c5641e70c3ce01c88b1de5a8a35b1cd1b",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}