{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89433",
    "entityType": "User",
    "nonce": "0x16498ddc2bdd813326207fccd0287d018ef532bee231e98f8990df97e74fc11e",
    "signature": "0x5df4a059284a8046405f54671ebccd709880ee6f71d16b94f96dea5b08a4eafa3dd485194499468e0627160ff327a03f6adc6e5dbc5c153990ad6fa1ed6aac281b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}