{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x011e23309a8699be4e3d1cbaa122110d802aea1b416d4664bdfb39cb4a02d495",
    "signature": "0x86df8c61737e3db56c374329103b58da2210e68ece97f63b470b174cc5fd4deb47232d0dd7943cba9c9ddd5ef9728534f308a03b571e042f90230bb72f634c7e1b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}