{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1713713",
    "entityType": "User",
    "nonce": "0x4c9e6e89b644c37dc06a8fb653ceeadb322ccfc9c454c6d726b75618200654ad",
    "signature": "0x10153adea19b4dd8282cd53ecd3b88bdd9ba15aaf5b6bcf46a84a0a79df0fe6c23b9cf3fb55956995ec18d373452216ad0fdb27ff7b1319dca82433c4fdcc47a1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}