{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511167",
    "entityType": "User",
    "nonce": "0x87e47b3ddf3b289488edb6a198a35cff027aa664e987a4ae198343c1729e5617",
    "signature": "0xc9b6daa3da431e6e46e02b8c085745d597ae7e5b58ae897991630ad4f3c38d8d329e5080f7d99d08ab302656cd18aece6731f14439475301382b9ee2597d0baa1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}