{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8bedb9ab7187747f9921c57833086f676733511ab34516b3480e784e6f0e398",
    "signature": "0xfb3f901320e37700c45aecd0745ee53135bc79a4a11aa6aafc56e8535be579a83f11a3e054f086edf9c7620d22c7f5f00f0bae12d7e21f20213e90f06ba7cf6e1b",
    "signer": "0xbe2519735C9A3Adcf25598F85E282a46988a1225",
    "userId": "657809158"
  }
}