{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf359281139c4879e584cb21c046f76799191f1ac1e4e21c1d4f3200900957df7",
    "signature": "0xcbe1ca0e67f1c4956a42f43dca1d2cf12c11fd1ad79cb0811ed3fe4d62c492db72b601cda75e932de81b4a01c9b43de761a72498f85443532980435a625a23aa1b",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}