{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1228",
    "entityType": "User",
    "nonce": "0xfa8310d696cdc38189577acca7fe72a1234252506306b774e4552675ccd81fb6",
    "signature": "0xca301c802ab2d88271aadf190d379bceb29b66e6dea43017c6cd4512333fabc95d3706d2de9f760e08771d3a7f46b361ccc2b015dae7b51acf4fe11dc599eedb1b",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}