{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225324815",
    "entityType": "User",
    "nonce": "0xa7e37adf168af616362a94c57376352e425b8fc0aa07efc8582c4816ce35c0fe",
    "signature": "0xcac5eea205109886065b83e5b8f4582df6cf7abd2065babbd05a76484b1bace1257b8b57b9acaa382c44ba4984d33901c132b1e533336443618abe05d0c0199b1b",
    "signer": "0xC77C2E6566ff59C1a7cb067C0C56235557D977CF",
    "userId": "772413226"
  }
}