{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373162",
    "entityType": "User",
    "nonce": "0x7ae4df3b91bda2c7709fbc2018f1711018cacdaab5b5e6d388aa98a945e0c854",
    "signature": "0xf2e3fd8e91148430db465602366859be14fc4b2890feb6c5d6e2395b3e59ec0e24a909423aee4a61e38a0146f9088891708483c112a240a0c082883fc30eb98b1b",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}