{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179782",
    "entityType": "User",
    "nonce": "0x16d2489ce574f3e2d0e99a211a4b2a8bfdb97b60fa1e8683f96ef5be773d3ec8",
    "signature": "0xc4ff7c2cce3f613c4dd88ae8fddc6d500fbb29da625fa2c4615b1063f7b04a4c07048a700683374f23342f78939c9c5a1995b5a9ef5ae6c4980fd87712a1f7131c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}