{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "564931800",
    "entityType": "User",
    "nonce": "0x06fc37a09e2f2929b46ca2df3b97b0bb89ef2f0146d9845ceb6ccc633419ede1",
    "signature": "0xfab28c7badcdea56fcd43de2b33d5e9327c37b53d0b872dd869c5bce0d4e4a0821143cad33c18fb09a512134ae717f3daa769f0fc4daa962f732a80051093c1c1c",
    "signer": "0x4D1242D0da3f49195E59794290Cbfd833cCD04FF",
    "userId": "627952347"
  }
}