{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xe2c44b812339cf60b77a3352f2414122f0a71674e64624a889fb8411a9e7e6eb",
    "signature": "0x6c3acfae8378cebd07ed48d2d28daff84ed35830aaaca8c16b3330dd1a4d0b32409e3f8c261f4329743812946a0fcccc264bc8665cf5d585a802862dddfa71aa1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}