{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309242061",
    "entityType": "User",
    "nonce": "0x6afdd8b7f290e60ce69514d35b826bba41057a1252726a9a427390e80510da08",
    "signature": "0xd365ec54ad69437d6e1906db5ddc5daafcfce1b2bba96a268db3f5317dd4eb8b2549064f4c30272f0559d207681fa8ef3a23edb487c69e4af41aa8243cf94d791b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}