{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "786263420",
    "entityType": "User",
    "nonce": "0x01bac543e2125da7221c34eb2cafc52dfb5134159d3c22e01841e6bc365c0a6f",
    "signature": "0x81a2d490d8dc9339aca0ec7df878782fe3dbb6f194c815980fc51a84a0c9f6ec52043a666cf1c31971ca20eddc6af0d4ea5f434ca7a174c2a8151acfb981ae9e1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}