{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760764",
    "entityType": "User",
    "nonce": "0x8abf4ed316ce0b88f8decd3066c37ef4ff9996c649c0ffd2890384f81bb1a27a",
    "signature": "0xdd0a4fd16706367058d54b4f209e66009ff25f3575a59d8638a713f29fdd18ea508a84791bb3b69640ac935936109fb0a8edc2e1d162450fa009f0d74c30b29d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}