{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201696407",
    "entityType": "User",
    "nonce": "0x3c408a20b790d68afccc207b7dd025a353169267b0f962425dafdcdfcbd13855",
    "signature": "0x61784b4763735183e206c7686a956866ef2e30244555a502e78a755007841a357551c4547b766f167dc0ca1672a1f86117bf1a4916c6339d755a5d16f6b5b47f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}