{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc5299376c1e898249714bc4a3b27f6eeba79f01c9e6fd71763e9e65514b6afa",
    "signature": "0x5356272de4f61d9bd68c291b3fe2977a109ddf190c90af244526d1cc01432dc2345cf588c14601c713b4c4c501ce8be255ca3c623dc887b4e5b296e32bc8d2861b",
    "signer": "0xCd8044d3d425f124B0F430AF6fdE6671FEb03D54",
    "userId": "778114308"
  }
}