{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342017819",
    "entityType": "User",
    "nonce": "0xce3481df519c85f26e69f4bd67f2d84eb741378444df2ae06d74a5a800b94f3f",
    "signature": "0xa4a6ae2df8c1a035baf0603c331bf01ec97f58864d6cdb7d68858a3413b40fca72677a0d58fb3c9d2976b951cfb2b8727f8241d70bb7b0ce18ea0df99f2db2c51c",
    "signer": "0x262FfE6368E86674bFd32404757f3A8B1a189F85",
    "userId": "664900058"
  }
}