{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "569383",
    "entityType": "User",
    "nonce": "0x657b1a54d4df0fc6dfbdd1d3a3613e843979e9bcba174541e45e36730c7dd125",
    "signature": "0x10e97b738717a3c4770042d59f0d671a75f7c02bc9672e604c274afdc87b380329bd6d98fa121ff578519ffd431c8ccc764888ede20d934530b85dcf407dccf21c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}