{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xabc00612db1e71eebb597e50067810d0a92c0f79094fa3ee3d1ae10f9d066d54",
    "signature": "0x214c4e025dacd6d3d875a40a52826d048464499f16cceb79499854978a1f378e5f40b1103d8eaaa02a924beea987cffcda597da12ef1de0e0d7bcd36627a502e1c",
    "signer": "0xBBC05aa9c3ef332155b7C0490F15fF7762a556c0",
    "userId": "958449349"
  }
}