{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315838",
    "entityType": "User",
    "nonce": "0x2cb2a33845c9af0fd85f21d874709eb1c58acdbe92d774759bedc9aa3391cc53",
    "signature": "0x9f0fbc5b92e373103dce45598951ea8174ac27c176935ff3cfd2279777f4ee6454a12d6e6bc1a8c956937115f7f7bf3acd4bb255dc264a71b0ff1b6dce7ae28d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}