{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6ef1f2ba30e3b1ddf1ed910f874e8dbc65cc7eae3278a329edbe5f33c31817cd",
    "signature": "0x8e670b230da447eaacab815d50c5fe7399b30be8ef9e9e3577784fd5673860f4309c93be70e4f1ac3a41f8a715783d67e3a13e318ee50b5a7856061090d393111c",
    "signer": "0x1Dd8e503eA52eE0cE5360d0F01B587662d27d935",
    "userId": "366246970"
  }
}