{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x6e510c24b1447ba5ade573c04676213b65c113a9b16bc2c4ea8f4e684b3ca968",
    "signature": "0x331e835e1f240305da776cdf73163795ffd52cf7267f2cde4d9cc81db85448915e91945e4925c8f93bd27c4fb612eb012433ec47488e1b64dc3cb47f02663f581b",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}