{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11619",
    "entityType": "User",
    "nonce": "0xf9af5e7dfd296fe91880342be1ec7aec95ce0a599ff7d435bbbd78bdb78fec01",
    "signature": "0x2e3d7a3521b588383e08114f0ad5494209c9e97edce060eab2b3318801f9a49f3379ab935b3f6a856fac43df9aae2baed3571c5856b82a10c4cc76c62aad4c9f1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}