{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9780",
    "entityType": "User",
    "nonce": "0xa06529a978f9b2b0515bae50ff096f3994b712fc08d7620b2a469205b013b44f",
    "signature": "0xba1c8b4bfda324c212ad1494dabe54dcbdbfdb2d8921d8ab342524d9afd298f224cdc321e26e262fca1357902885122373684e432e8d31a96bc2fef24779b53c1c",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}