{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208488",
    "entityType": "User",
    "nonce": "0x550c2e508e1889b20ccbb2e3dd307c4599484bb1ada75908fab72501dde61eec",
    "signature": "0x7c4f1dbb89fc53fc5a7c480426fe1564c3d33d92d22596fc50c15999ea03ed633536a3b587d3d33622c6a3eba651447ec729f535580f602521917a353bdac71e1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}