{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0xdfc22b17ff4ab7025bcec264365bb8fa3389f16e4043cd500f17dfdf4e10de0f",
    "signature": "0xbb78923ea962b438f6952190a41975bcbea33d5affe74ec396a8221a0edf6cee32854d62d4d8e42391a17df1f7a9dc7ebc65dcce44fa0b3be7656338dda27ff41c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}