{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984593706",
    "entityType": "User",
    "nonce": "0xb426d98e398f66601982da40bb1ec8d0237663d378d3bc1ada1ab6e49aeca6a5",
    "signature": "0x1f13f554e6d94892dde849577c3ed2ec65a7bebaf2f4e728e5682c299fbc468f6c9d3e1ef0a4044d9703014da6c986f0ff0f462b0f343ee54c31d2a734460a061c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}