{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa18c206ff15d01385ff8fe5a91ba05508f67fb85fe48609846874d31093093c9",
    "signature": "0x2fcc96ac16b7cd9997a507ae181afd45fc147f15bd86be649e41ccfe3ebfdcfa698bda05920d8d86b0d574354e4b6534e4e4cd46d1dbc9098de406f01643fbe81b",
    "signer": "0x244b00087D20958e646f25e09e9293500D116178",
    "userId": "844669720"
  }
}