{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8650",
    "entityType": "User",
    "nonce": "0xfd8353c8b4e8726cbe6cc7851031aa29cf12bdc95da5ac0a5a323033f0ecb243",
    "signature": "0xb2666e1c2c5fda9889a9fea90a62e0c24fa1815840d4d461f5aafa5a148a50aa55f8dc87514459c0850421ea736985dc3c2a106fe26d690882742a0b676e05af1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}