{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193140142",
    "entityType": "User",
    "nonce": "0xff7a161d89c52e77485a3cfd26e3c000b7908ddf830d22e0debcab2aab5084d8",
    "signature": "0xf39ff9dbd953c5a1e9b1b1c966003f6e438864af8a26c87584a7365d64e4b22d29f1d8b36840c100c7539b15f92ceb4cfb49301baf5f7d41386858db14be680b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}