{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305916",
    "entityType": "User",
    "nonce": "0x335e34bed4622de7bfcba70ffa68aa75d078d7a540a44fc488c337db57b79d87",
    "signature": "0x7a00f4db2e8bcbc67b9d78352e1d3746d1ba91abdb70fb13a42b14d19891aedc561b1f12a14e2b3cf948b5e2c53e11a17cd6db1132fc53f3d7cc8fee9ed276321b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}