{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197782",
    "entityType": "User",
    "nonce": "0x3ffcda055cbf19e8d25c133c95412e14e99c32740f2a48fcabad148bc30896a6",
    "signature": "0x63cdadd76915f9042cf7ef8cb35fa755a31803b00d59716709612cfcad5dff390931db8a538fda2f6b889c6ded6b7be182562b3b41f9ce2e139becfafb4f89c31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}