{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xe606326ec5c1523db8fc98abf8004e31f2f4e98f0cba6353090314584828a6f1",
    "signature": "0x3797b9488c34f3fa4400bfaef834fb4832c992f457817dcb4d1a0405e007531667b91d37534f9a51fd3ec81c5f80ce7e544358d3f67097d7224e971c457efade1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}