{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2c0338e1028c241c59f819b8e3695f079a284372b49b50168d04f4e8a885ca8",
    "signature": "0x56e7ab625c2246b77ed79eaee0f2738811b50aadf68c6f9ed2424e906fa463e6769b601fb39f0d859cc8c18cc3ca2801a5307400f718b9efb4c44a9da765e6611b",
    "signer": "0x8cDab4bAdD2D0502631325D9eaa877865F6c8981",
    "userId": "43933168"
  }
}