{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x34e79cd6bf510a7d63c6e981cb6ddefe2538f8a07a40c6be9c89c8ce0f7cf540",
    "signature": "0x02c0fda1ba90483c42af5bbb263c50f89cc05e6caf9ecd58f187c94763e8d6ec67f757bac2c9fd17b4224368d93def3374c2dea7961f0b93d662dd98dec09ea91c",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}