{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8223",
    "entityType": "User",
    "nonce": "0x1df07704d7238fb10c09283a77d8ee629eacde51021f03016f56748f3ac05e25",
    "signature": "0x10898ff0bc5321be2d17eb73c94b69bcc40a2e4e6a61ea429f622036511a4c71764c46f8b672d9690d4cf8d4ae41dc4de95f60ac43661e05e32f2d704c7a80671b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}