{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc84d5a5f51a5847b8b720734b92a8d3f883b0c25cb912227947c532538fcb157",
    "signature": "0x4772d05bb31960a008772bab27fecdd08557717078b001aa54d98e1a39acb9513ee2ea69cfcf487d2fe345688d28c10a68c624abb35868f17a5a91521bd66bfe1c",
    "signer": "0xbcB20e5E9556cA6FFd290C173050CFAB41d4BC64",
    "userId": "736009627"
  }
}