{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844825045",
    "entityType": "User",
    "nonce": "0x39e776510338e00c4ae2868b120703877c77fe7309bb099ff9428704235a51c0",
    "signature": "0xc79403e64ae1a36b9d76cdbae5d9c49ec1029395c18a327d2a23790e8d77746566d7b974886cbb1da905ca2f8056cfd9fa89cc18499702c92fb53c8856fb906b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}