{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5862",
    "entityType": "User",
    "nonce": "0x3401a0fa450c84375d72065f366630b21cb29b16d07c698b048c8b746c27c3ba",
    "signature": "0x43ab548a093e53effe67f61c8c2bb4afdad866f5ea8ab4d39030b8ac9749818c3abee3563f6b87be3854e7618a2ac8417974d7587ec1260dd9300bcca778223e1c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}