{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9639ba63faaf5456e37fef7ceaf3d6449e0bf16057c68382bb83af279534ed4",
    "signature": "0xd691c701b6fd5b3a54dd9f2f7fc7f1e466c2038eab764664932855e0f2e82c1351afe4981af08263866849828ff0039a889e90ec7118c1cf167b8fc691408bd81b",
    "signer": "0x44463C62EeC8101317152A86f19307941d2D3cBd",
    "userId": "949893395"
  }
}