{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x21b1895a112d29c9561da4654f11a503f1ae1293d6d3045b783408e980b5aa9a",
    "signature": "0xfdeaf799472bcde559d84690871ec7ac500d9c13b48ce06df61951555dc615af66ec5d7ef2326e85d9153725445bd9764676d5f8821d4ecc08751b330596aa901c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}