{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0x08770f98999c9b229abc7bac3f456e52ce52700baa4b224686158a6334b53e22",
    "signature": "0x33593964ef4b7e758bb5e13dabbb5eb23d3bd35292e22824e0a83d87103f1cad0f3a03c0121d01f96e406c9f338e28ecd423937872acca926a824c6692d03b751c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}