{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75941",
    "entityType": "User",
    "nonce": "0xa18ffb56401b1f647dfd6e3a215b65002b1faaddc10b214b9dab807ab08df302",
    "signature": "0xd35f51c742f7be5e655bb9cbdc2e2d5e0499d4efc4ace91522791deac20ef7b33367840342cba2f9d5dc1d5d0d0f2ab0d1826bea26c1c49625a371f1147589631c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}