{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175470",
    "entityType": "User",
    "nonce": "0x2b4d3f03c5abe5e69a5ac0287296bf3fd506582d7a12a122b72c43ee0b9876bc",
    "signature": "0x2745a8299039ed51f5da1b4602789be36669f24a7df0fb86d1ce272c6d664e9a45fca424ca348ab60e74bc2e6d050809f5135cd616126f3172a2f136b834c0eb1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}