{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x92bd7664810196972b695dffb66b8ad8ab422d22403616ecc40c8e05b9d2b0c4",
    "signature": "0x010852ee12d28bb1bf324482162d8bfd282b44c19c5428cf1dd4d20a100c02a6451c1ae9536882d100634ed2cdaf21ac35ec998d890515e95786c2a5f51db0811b",
    "signer": "0x8a1ED39609873f06332036850469A4971090D9a5",
    "userId": "829645107"
  }
}