{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49994",
    "entityType": "User",
    "nonce": "0x668debd22fda8f3cb05dbd434476efe87e29377200b4053421cb61fe933f4ac7",
    "signature": "0xa59f0c2bbe3cf0ad6a116dacaec6a9afc79650e378e9895bc582bf830c0fa8cc15ff2988ac43ead4bf2b5e9b85a106673486e73dfbd6d4d45eb0c284a2890ec51b",
    "signer": "0x5D040c7e172B07431383B4bd6Fdd84ed67B8Ba0f",
    "userId": "508547804"
  }
}