{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271210185",
    "entityType": "User",
    "nonce": "0xe87aeb4dabd79caaf95ac34d4960d400d426d58775a350b42ea30a1d371cd752",
    "signature": "0xe844c45390bb5292b1f93a8de83b42f70af5f4c05570f9209a37aec153e231e17946196ea93b157310595f73314385611bdec0321d88c98d30de3829f32e86911c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}