{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880692",
    "entityType": "User",
    "nonce": "0xd14fed2b63f79aa5b308f7274fae97829ef0dad21238391404996e2f0731ae5e",
    "signature": "0x09596ae0c7d341de3af7e038d7c4dfaf08c1852188af171b3ed49455b6cccc9c45b1878d156ed3b3511a3637adc619b55bbbde99c0d0124f595ae259a20cfa2f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}