{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x8ba3fffca19486acaa93d54f2eea333825fa5b6b87ba8bb6a495256147335ebf",
    "signature": "0x1884169ca169a2d7f3b064bc9bcdd2df0b33745fa8562c071af2477455152d121344d869c59a00e0380262bbc335a89f57ccdd353fa85902c67f497a0201ebf61c",
    "signer": "0x6015AC6ad37b0328C10a529E70348751FE8ffF41",
    "userId": "176201"
  }
}