{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115410",
    "entityType": "User",
    "nonce": "0x7a702198bcb808be6c01a083514f6f82dffe50979cae2a35da42ee3ccf815e03",
    "signature": "0x78d00813fafa61c62625936ca176f7ddeba349d9801974a0bf35306715b6b1c12512acca0da714e4d2c26655771fe1f92a31da97e3bfe953b4d46d39f23959741c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}