{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0xfaf23933afcfab5a6fd5cf08dadf6beaa6228527f3817d794bd697372ad45d22",
    "signature": "0xae86167c5683637a85164a1ea3a4a7eb7195cc598417f7540f17b441e9282f9600a2f432f04b29f8ee45b2af8195d1feaa6d50271972c6ec685adeeb551655d51b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}