{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1493",
    "entityType": "User",
    "nonce": "0xd14b2a9b1ddeb5a62291538383b39069ec6127badc23643508ae0dd62a43bd43",
    "signature": "0x0991974173616fd017c3c4170f973bdc63d4b45f2b43265028a6ab53f4190d5b0e1f90c2d2a68f65062b75511d4ce08525dcdc6388fbfc9e201e2561051d1af41b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}