{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2018276",
    "entityType": "User",
    "nonce": "0x4b3ff0a169bce0ac41cfa7ae21603a0ae7f7a7240d1053fcfba69fa8ae17d94c",
    "signature": "0x11c6990acba6695eec7bd5618089d51d34b445634a8ab73007106e082918722b21af9c1935bdd4cbda44ecdec5f229d5e73e9194389d1f361e6f82d239c60e201b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}