{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "626516854",
    "entityType": "User",
    "nonce": "0x9e965592b34806475b78283fc27ec9707bf4579f1f6c11e619b2cae47f96580a",
    "signature": "0x45d7787584f3006b9a19d4e57dde85acde5fbee9346f483059a0e2edf1cf3f07629dc7168d855d5a62b3f7378be4f739a523db4d8886db320cab6823760186a31c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}