{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x7cf0b0fb2aae9189ea753cfeaeaa96ce8dcac22ea836c1c189ddd5005ea07913",
    "signature": "0x022133b7f24cd0f3c854a3e9edccf19abf053bf681735f6b7d1171eb4d7a890a47a0b70e6fa5accc096a6d01785b7b404af31a11a0465f874a97c12e548c68271c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}