{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3c20c5e5c5506260dedc91f77d19b6e89e93ed33436dcbf0b7840c7b9ec28ab",
    "signature": "0x6f65d2e926e52d953825cd7fed3112cb4545dce174635c80b3103daa26575ecb39d7b91f25b11935f46779c016a390f5e65e1813f02e0c38f44ef354d614b4e91b",
    "signer": "0x54952826c1896F8D9f5336260a6Dc5066ab1b741",
    "userId": "847497610"
  }
}