{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0xc45bd5171ae51d4ec494c44ee510c91b4fbb2e5c7776ad2e1e40db09f1bcee6d",
    "signature": "0x3985af284fabf305e5bfca0336f9a42db5c506814dd5414aa132b89bb88bfffd3b3012ec907455e2d55634378df3faa6dcdbe304324eccd669000488ac7809ad1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}